[SPARK-15062][SQL] fix list type infer serializer issue

## What changes were proposed in this pull request?

Make serializer correctly inferred if the input type is `List[_]`, since `List[_]` is type of `Seq[_]`, before it was matched to different case (`case t if definedByConstructorParams(t)`).

## How was this patch tested?

New test case was added.

Author: bomeng <bmeng@us.ibm.com>

Closes #12849 from bomeng/SPARK-15062.